| 摘要 |
PURPOSE: An operating circuit of a gas analyzer and method for controlling operating circuit is provided to improve precision of gas analysis by making a gas condition to be measured in constant temperature and humidity. CONSTITUTION: An operating circuit of a gas analyzer includes a solenoid valve driving circuit(110) for controlling an on/off action of a solenoid valve(60), a control circuit(120) for measuring a temperature of a heater and a dehumidifier and turning the temperature into a set temperature, a pump driving circuit(130) for controlling an on/off action of a pump(80), a key input unit(10) for inputting an operation order and a system setting value to the gas analyzer, a display(30) for visually displaying data, measured time and analyzed result, a digital signal processor(100) for processing the measured temperature, humidity and gas data into digital signal, a memory(20) for storing program of gas analysis and for storing data detected from a sensing part, and a controller(50) connected with the above circuits and an external computer and for controlling the operation of the whole system.
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